diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e7b957..c723843 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,10 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+### Changed
+
+- Update dompdf dependency.
+
 ## [1.1.2]
 
 - Updated logging.
diff --git a/composer.json b/composer.json
index aaf1734..7018f3f 100644
--- a/composer.json
+++ b/composer.json
@@ -35,7 +35,7 @@
     "prefer-stable": true,
     "require": {
         "ext-soap": "*",
-        "dompdf/dompdf": "~0.8.0",
+        "dompdf/dompdf": "~0.8.0 || ^1.0",
         "drupal/webform": "^6.0",
         "http-interop/http-factory-guzzle": "^1.0.0",
         "itk-dev/os2forms_cpr_lookup": "^1.6",